Unlock instant, AI-driven research and patent intelligence for your innovation.

Providing connection between networks using different protocols

a network connection and protocol technology, applied in the field of mobile communications, can solve the problems of not being able to solve the roaming problem of a mobile node, the inability of a mobile ipv6 terminal to reach a mobile node mn, and the inability of a mobile ipv4 connection to reach a node cn having a conventional ipv4 connection

Active Publication Date: 2006-03-23
NOKIA TECHNOLOGLES OY
View PDF25 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, known transition schemes can enable a communication between an IPv4 and an IPv6 node, but it is not possible to solve the roaming problem of a mobile node.
This means that the mobile IPv6 terminal is not reachable for the IPv4 node when the mobile node roams outside its home network.
However, the correspondent node CN having a conventional IPv4 connection cannot reach the roaming mobile node MN.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Providing connection between networks using different protocols
  • Providing connection between networks using different protocols
  • Providing connection between networks using different protocols

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The idea of the invention is to add a network entity which serves roaming network nodes such as mobile nodes supporting a first and a second protocol in a network using the first protocol. This concept of the invention is described in the following with reference to FIGS. 1 to 4.

[0032]FIG. 1 shows a network system comprising a first network 100 and a second network 200. The first network 100 uses a first network layer protocol such as IPv6 and may be subdivided into home and visited networks. The first network 100 comprises a plurality of communication network nodes 150, 151, 152 and a plurality of routing network entities 110, 111, 112, 113 each arranged to serve the communication network nodes 150, 151, 152. The second network 200 uses a second network layer protocol such as IPv4 different from the first network layer protocol and comprises a plurality of communication network nodes 210, 211. The second network 200 may also be subdivided in home networks and visited networ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A network entity located in a first network using a first protocol, the network entity supporting at least the first protocol of the first network and a second protocol of a second network. The network entity comprises a receiving unit for receiving data packets according to the first or second protocol, a mapping table for storing addresses according to the first and second protocols, an address determination unit for determining a destination address for a received packet from the mapping table, and a routing unit for routing the received packet in accordance with the determined destination address.

Description

FIELD OF THE INVENTION [0001] In general, the present invention relates to mobile communications using a network such as the Internet. In particular, the invention relates to supporting a connection according to a specific network protocol in an environment using another network protocol. According to an embodiment of the invention an IPv4 (Internet Protocol version 4) connection is supported in a Mobile IPv6 environment. BACKGROUND OF THE INVENTION [0002] Mobile IPv4 as a specific network layer protocol for mobile communications and Mobile IPv6 as another network layer protocol for mobile communications are the protocols solving the connectivity problem when IPv4 nodes roam in an IPv4 network or when IPv6 nodes roam in an IPv6 network. In other words, either mobile IPv4 or mobile IPv6 is used as routing support to permit IP nodes (hosts and routers) using IPv4 or IPv6 to seamlessly “roam” among IP subnetworks and media types. The Mobile IP method supports transparency above the IP ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04J3/16
CPCH04L29/12066H04L45/00H04L61/1511H04L2212/0025H04W80/045H04W40/00H04W80/00H04W80/04H04W8/26H04L2212/00H04L12/4633H04L61/35H04L69/16H04L69/167H04L61/4511H04L61/00
Inventor HUANG, HUIWANG, HAO H.ZHAO, KAI
Owner NOKIA TECHNOLOGLES OY